aluminium; aluminium alloys; aluminium sheets; extruded aluminium sections; aluminum sheets; sheets of aluminum; aluminium strip; extruded aluminum sections; slabs of metal including those from alloy steel and titanium; slabs of metal, including those made from alloy steel and titanium; metals and metal alloys; sheets of metal including those from alloy steel and titanium; construction panels of metal; zinc and its alloys; sheets of metal, including those made from alloy steel and titanium; construction panels made of metal; building materials being metal floor panels; metal building materials being floor panels; building materials of metal being floor panels; construction materials being metal floor panels; metal construction materials being floor panels; metal building panels; building materials being floor panels of metal; building panels of metal; sheets of aluminium; aluminium and its alloys; aluminum foil; window sashes of aluminum; aluminium siding; clad aluminium strip; stabilized aluminium foam; metal construction panels; aluminum alloys; window casements of aluminium; aluminium ingots; aluminum and its alloys; extruded aluminum profiles; reinforcement elements of metal for pre-cast concrete